✨ feat: Wizard so spätnou navigáciou + oddelenie názvu a hostname

- Cancel = Späť na predchádzajúci krok (na kroku 1 = Zrušiť)
- Názov kontajnera sa zobrazí v Proxmoxe tak ako ho zadáš
- Hostname sa automaticky vytvorí malými písmenami
- Resources (disk/ram/cpu) v jednom kroku
- Potvrdenie zobrazuje kompletný súhrn

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ct/ubuntu.sh

@@ -62,65 +62,7 @@ simple_install() {
 
   header_info
 
-  # --- KROK 1: Hostname ---
+  # Stiahni users.json dopredu (len raz)
-  HN=$(whiptail --backtitle "Ubuntu LXC Setup" \
-    --title "HOSTNAME" \
-    --inputbox "\nZadaj hostname pre kontajner:" 10 58 "ubuntu" \
-    3>&1 1>&2 2>&3) || exit_script
-  HN=$(echo "${HN,,}" | tr -d ' ')
-  [[ -z "$HN" ]] && HN="ubuntu"
-
-  # --- KROK 2: IP adresa ---
-  local ip_input
-  ip_input=$(whiptail --backtitle "Ubuntu LXC Setup" \
-    --title "IP ADRESA" \
-    --inputbox "\nZadaj statickú IP adresu s maskou\n(napr. 192.168.1.100/24)\n\nAlebo nechaj prázdne pre DHCP:" 12 58 "" \
-    3>&1 1>&2 2>&3) || exit_script
-
-  if [[ -n "$ip_input" ]]; then
-    NET="$ip_input"
-    # Gateway
-    local default_gw
-    default_gw=$(echo "$ip_input" | cut -d'/' -f1 | sed 's/\.[0-9]*$/.1/')
-    GATE=$(whiptail --backtitle "Ubuntu LXC Setup" \
-      --title "GATEWAY" \
-      --inputbox "\nZadaj gateway:" 10 58 "$default_gw" \
-      3>&1 1>&2 2>&3) || exit_script
-    [[ -z "$GATE" ]] && GATE="$default_gw"
-  else
-    NET="dhcp"
-    GATE=""
-  fi
-
-  # --- KROK 3: DNS ---
-  local dns_input
-  dns_input=$(whiptail --backtitle "Ubuntu LXC Setup" \
-    --title "DNS SERVERY" \
-    --inputbox "\nZadaj DNS servery (oddelené medzerou):" 10 58 "8.8.8.8 1.1.1.1" \
-    3>&1 1>&2 2>&3) || exit_script
-  [[ -z "$dns_input" ]] && dns_input="8.8.8.8 1.1.1.1"
-  NS="-nameserver=${dns_input}"
-
-  # --- KROK 4: Resources ---
-  DISK_SIZE=$(whiptail --backtitle "Ubuntu LXC Setup" \
-    --title "DISK" \
-    --inputbox "\nVeľkosť disku v GB:" 10 58 "$var_disk" \
-    3>&1 1>&2 2>&3) || exit_script
-  [[ -z "$DISK_SIZE" ]] && DISK_SIZE="$var_disk"
-
-  RAM_SIZE=$(whiptail --backtitle "Ubuntu LXC Setup" \
-    --title "RAM" \
-    --inputbox "\nVeľkosť RAM v MB:" 10 58 "$var_ram" \
-    3>&1 1>&2 2>&3) || exit_script
-  [[ -z "$RAM_SIZE" ]] && RAM_SIZE="$var_ram"
-
-  CORE_COUNT=$(whiptail --backtitle "Ubuntu LXC Setup" \
-    --title "CPU" \
-    --inputbox "\nPočet CPU jadier:" 10 58 "$var_cpu" \
-    3>&1 1>&2 2>&3) || exit_script
-  [[ -z "$CORE_COUNT" ]] && CORE_COUNT="$var_cpu"
-
-  # --- KROK 4: Výber užívateľov z users.json ---
   msg_info "Sťahujem zoznam užívateľov"
   local users_json
   users_json=$(curl -fsSL "$USERS_JSON_URL") || {
@@ -129,40 +71,183 @@ simple_install() {
   }
   msg_ok "Zoznam užívateľov stiahnutý"
 
-  # Parsovanie užívateľov bez jq — cez grep/sed
+  # Parsovanie užívateľov bez jq
   local usernames=()
   local key_counts=()
   while IFS= read -r uname; do
     [[ -n "$uname" ]] && usernames+=("$uname")
   done < <(echo "$users_json" | grep '"username"' | sed 's/.*"username"[[:space:]]*:[[:space:]]*"\([^"]*\)".*/\1/')
-
-  # Počet SSH kľúčov pre každého užívateľa
-  local idx=0
   for uname in "${usernames[@]}"; do
     local kc
     kc=$(echo "$users_json" | sed -n "/$uname/,/\]/p" | grep 'ssh-' | wc -l)
     key_counts+=("$kc")
-    idx=$((idx + 1))
   done
-
   local user_count=${#usernames[@]}
 
+  # Predvolené hodnoty pre wizard
+  local _ct_name="Ubuntu"
+  local _ip_input=""
+  local _gate=""
+  local _dns="8.8.8.8 1.1.1.1"
+  local _disk="$var_disk"
+  local _ram="$var_ram"
+  local _cpu="$var_cpu"
+  local _selected_users=""
+
+  # Wizard so spätnou navigáciou
+  local STEP=1
+  while true; do
+    case $STEP in
+
+    # --- KROK 1: Názov kontajnera ---
+    1)
+      if result=$(whiptail --backtitle "Ubuntu LXC Setup [Krok $STEP/6]" \
+        --title "NÁZOV KONTAJNERA" \
+        --ok-button "Ďalej" --cancel-button "Zrušiť" \
+        --inputbox "\nZadaj názov kontajnera (zobrazí sa v Proxmoxe):\n\nHostname sa vytvorí automaticky malými písmenami." 12 58 "$_ct_name" \
+        3>&1 1>&2 2>&3); then
+        [[ -n "$result" ]] && _ct_name="$result"
+        ((STEP++))
+      else
+        exit_script
+      fi
+      ;;
+
+    # --- KROK 2: IP adresa + gateway ---
+    2)
+      if result=$(whiptail --backtitle "Ubuntu LXC Setup [Krok $STEP/6]" \
+        --title "IP ADRESA" \
+        --ok-button "Ďalej" --cancel-button "Späť" \
+        --inputbox "\nZadaj statickú IP adresu s maskou\n(napr. 192.168.1.100/24)\n\nAlebo nechaj prázdne pre DHCP:" 12 58 "$_ip_input" \
+        3>&1 1>&2 2>&3); then
+        _ip_input="$result"
+        if [[ -n "$_ip_input" ]]; then
+          local default_gw
+          default_gw=$(echo "$_ip_input" | cut -d'/' -f1 | sed 's/\.[0-9]*$/.1/')
+          [[ -z "$_gate" ]] && _gate="$default_gw"
+          if gw_result=$(whiptail --backtitle "Ubuntu LXC Setup [Krok $STEP/6]" \
+            --title "GATEWAY" \
+            --ok-button "Ďalej" --cancel-button "Späť" \
+            --inputbox "\nZadaj gateway:" 10 58 "$_gate" \
+            3>&1 1>&2 2>&3); then
+            _gate="$gw_result"
+            [[ -z "$_gate" ]] && _gate="$default_gw"
+            ((STEP++))
+          else
+            continue
+          fi
+        else
+          _gate=""
+          ((STEP++))
+        fi
+      else
+        ((STEP--))
+      fi
+      ;;
+
+    # --- KROK 3: DNS ---
+    3)
+      if result=$(whiptail --backtitle "Ubuntu LXC Setup [Krok $STEP/6]" \
+        --title "DNS SERVERY" \
+        --ok-button "Ďalej" --cancel-button "Späť" \
+        --inputbox "\nZadaj DNS servery (oddelené medzerou):" 10 58 "$_dns" \
+        3>&1 1>&2 2>&3); then
+        [[ -n "$result" ]] && _dns="$result"
+        ((STEP++))
+      else
+        ((STEP--))
+      fi
+      ;;
+
+    # --- KROK 4: Resources ---
+    4)
+      if result=$(whiptail --backtitle "Ubuntu LXC Setup [Krok $STEP/6]" \
+        --title "ZDROJE" \
+        --ok-button "Ďalej" --cancel-button "Späť" \
+        --inputbox "\nDisk (GB) / RAM (MB) / CPU (jadrá)\noddelené medzerou:" 10 58 "$_disk $_ram $_cpu" \
+        3>&1 1>&2 2>&3); then
+        if [[ -n "$result" ]]; then
+          _disk=$(echo "$result" | awk '{print $1}')
+          _ram=$(echo "$result" | awk '{print $2}')
+          _cpu=$(echo "$result" | awk '{print $3}')
+          [[ -z "$_disk" ]] && _disk="$var_disk"
+          [[ -z "$_ram" ]] && _ram="$var_ram"
+          [[ -z "$_cpu" ]] && _cpu="$var_cpu"
+        fi
+        ((STEP++))
+      else
+        ((STEP--))
+      fi
+      ;;
+
+    # --- KROK 5: Výber užívateľov ---
+    5)
       if [[ "$user_count" -eq 0 ]]; then
-    msg_warn "Žiadni užívatelia v users.json"
+        _selected_users=""
-    SELECTED_USERS=""
+        ((STEP++))
       else
         local checklist_args=()
         for i in $(seq 0 $((user_count - 1))); do
           checklist_args+=("${usernames[$i]}" "${key_counts[$i]} SSH kľúč(ov)" "ON")
         done
 
-    SELECTED_USERS=$(whiptail --backtitle "Ubuntu LXC Setup" \
+        if result=$(whiptail --backtitle "Ubuntu LXC Setup [Krok $STEP/6]" \
           --title "UŽÍVATELIA" \
+          --ok-button "Ďalej" --cancel-button "Späť" \
           --checklist "\nVyber užívateľov na vytvorenie:\n(SPACE = zaškrtni, ENTER = potvrď)" \
           $((user_count + 10)) 58 "$user_count" \
           "${checklist_args[@]}" \
-      3>&1 1>&2 2>&3) || exit_script
+          3>&1 1>&2 2>&3); then
+          _selected_users="$result"
+          ((STEP++))
+        else
+          ((STEP--))
         fi
+      fi
+      ;;
+
+    # --- KROK 6: Potvrdenie ---
+    6)
+      local _hn
+      _hn=$(echo "${_ct_name,,}" | tr -d ' ' | tr -c 'a-z0-9-' '-')
+      local _net_display="dhcp"
+      [[ -n "$_ip_input" ]] && _net_display="$_ip_input"
+
+      local confirm_text="Názov:     $_ct_name\n"
+      confirm_text+="Hostname:  $_hn\n"
+      confirm_text+="IP:        $_net_display\n"
+      [[ -n "$_gate" ]] && confirm_text+="Gateway:   $_gate\n"
+      confirm_text+="DNS:       $_dns\n"
+      confirm_text+="Disk:      ${_disk}GB  RAM: ${_ram}MB  CPU: ${_cpu}\n"
+      [[ -n "$_selected_users" ]] && confirm_text+="Užívatelia: $_selected_users\n"
+
+      if whiptail --backtitle "Ubuntu LXC Setup [Krok $STEP/6]" \
+        --title "POTVRDENIE" \
+        --ok-button "Inštalovať" --cancel-button "Späť" \
+        --yesno "$confirm_text\nPokračovať s inštaláciou?" 18 58; then
+        break
+      else
+        ((STEP--))
+      fi
+      ;;
+    esac
+  done
+
+  # Nastavenie premenných z wizardu
+  HN=$(echo "${_ct_name,,}" | tr -d ' ' | tr -c 'a-z0-9-' '-')
+  APP_DISPLAY_NAME="$_ct_name"
+  if [[ -n "$_ip_input" ]]; then
+    NET="$_ip_input"
+    GATE="$_gate"
+  else
+    NET="dhcp"
+    GATE=""
+  fi
+  NS="-nameserver=${_dns}"
+  DISK_SIZE="$_disk"
+  RAM_SIZE="$_ram"
+  CORE_COUNT="$_cpu"
+  SELECTED_USERS="$_selected_users"
 
   # Export pre install skript
   export SELECTED_USERS
@@ -177,7 +262,6 @@ simple_install() {
   VLAN=""
   MTU=""
   SD=""
-  NS=""
   IPV6_METHOD="auto"
   IPV6_ADDR=""
   IPV6_GATE=""
@@ -198,30 +282,6 @@ simple_install() {
   VERBOSE="no"
   METHOD="simple"
   DIAGNOSTICS="no"
-
-  # Zobraz súhrn
-  header_info
-  echo -e "${DEFAULT}${BOLD}${BL}Ubuntu LXC - Inštalácia${CL}"
-  echo -e "${TAB}${HOSTNAME}${YW} Hostname: ${GN}${HN}${CL}"
-  echo -e "${TAB}${NETWORK}${YW} IP: ${GN}${NET}${CL}"
-  if [[ -n "$GATE" ]]; then
-    echo -e "${TAB}${GATEWAY}${YW} Gateway: ${GN}${GATE}${CL}"
-  fi
-  echo -e "${TAB}${INFO}${YW} DNS: ${GN}${dns_input}${CL}"
-  echo -e "${TAB}${DISKSIZE}${YW} Disk: ${GN}${DISK_SIZE}GB${CL}"
-  echo -e "${TAB}${RAMSIZE}${YW} RAM: ${GN}${RAM_SIZE}MB${CL}"
-  echo -e "${TAB}${CPUCORE}${YW} CPU: ${GN}${CORE_COUNT} jadier${CL}"
-  if [[ -n "$SELECTED_USERS" ]]; then
-    echo -e "${TAB}${ROOTSSH}${YW} Užívatelia: ${GN}${SELECTED_USERS}${CL}"
-  fi
-  echo ""
-
-  # Potvrdenie
-  if ! whiptail --backtitle "Ubuntu LXC Setup" \
-    --title "POTVRDENIE" \
-    --yesno "Pokračovať s inštaláciou?" 8 58; then
-    exit_script
-  fi
 }
 
 # Spustenie